console.log(typeof true);
console.log(typeof false);
console.log(isFinite(10));

console.log(isFinite(10/0));
console.log(isFinite(NaN));
var inf=10/0;
var inf2=-10/0;
console.log(inf);
console.log(typeof inf);
console.log(inf2);
console.log(typeof inf2);

var num="hello"/5;
console.log(num);
console.log(typeof num);
console.log(isNaN(10));
console.log(isNaN(undefined));
var a=10;
var b=10.3;
var c=0xa;
var cc=0x10;
var d=010;
console.log(typeof a);
console.log(typeof b);
console.log(typeof c);
console.log(typeof cc);
console.log(typeof d);
